RNA polymerase I

 RNA Polymerase I transcribes the genes coding for tRNA,ribosomal RNA and ot her RNA. RNA Polymerase I is associated with gene transcription of 5.8S,18S and 28S rRNA genes.

REFERENCES: Molecular Biology of the cell 5th editon,BruceA lberts,Alexander Johnson,Julian Lewis,Martin Raff,Keith Roberts,Peter Walter(2007):339,340.